Improvement in attaching knobs to spindles



H. J. P. WHIPPLE.

Attaching Knobs to Spindles. No. 141,408. Pafe-ntedmy 29,1873..v

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UNITED STATES HENRY J. I.W]IIPPLE, OF MERIDEN, CONNECTICUT.

k IMPROVEMENT IN'ATTACHING KNBS TO SPINDLES.

Specification forming part of Letters Patent No'. ldll, dated July 29,1873 application :tiled J une 19, 1873.

To all whom it may concern:

Be it known that I, HENRY J P. WHiPPLE, of Meriden, in the county of NewHaven and State of Connecticut, have invented a new Improvement inSecuring Knobs to Spindles; and I do hereby declare the following, whentaken in connection with the accompanying drawings and the letters ofreference marked thereon, to be a full, clear, and exact descriptionofthe same, and which said drawings constitute partl ot' thisspecitication, and represent, in-

Figure 1,a longitudinal central section of the knob as attached to thedoor; Fig. 2, an end view ot' the neck portion ot' the knob; and in Fig.3, an inside view ot' the knob detached.

This invention relates to an improvement in the method ot' attachingdoor-knobsto the spindle; the object being to make a nice adjustmentbetween the neck ot' one knob and the neck of the other; and theinvention consists in forming the knob proper and the neck detachable;the knob provided with a screw to run into the spindle, which iscorrespondingly threaded, and also with a latch, which, when theknob isturned on to thedesired eX- tent, will, when free, fall into acorresponding notch in the neck ot' the knob, coupling the neck and knobtogether, so that by the turning of the knob the neck and spindle willbe turned.

A is the spindle, to one end of which a knob, B, is attached, in anyknown or. convenient manner. The spindle is ot' the usual rectangularform, or may be of any other known or desired shape. Its other end istapped to receive a screw, C,which is attached to or made a part ot' theknob D. The knob is chambered out, and is separate from the neck E. Theneck is constructed of the usual 'form,and so as to tit against theknob, that when the two are combined, as seen in Fig. l, their externalappearance will differ but little, if any, from other knobs. The end ot'the neck next the knob is formed with one or more notches, a, as seen inFig. 2. The knob is provided with a latch, b, and beneath this,

within the knob, a spring, F, is arranged, the tendency of which is toforce this latch from the knob, and on the latch a projection, disformed, by means of which the latch may be depressed. This latch isconstructed so as to fall into either one ot' the notches a on the neck;therefore, to attach the knob to the spindle, pass the spindle havingthe other knob attached through the door in the usual manner; then setthe neck E onto the spindle; then the knob is set onto the neck andturned, running the screw C into the spindle. In thus turning the knobthe latch is held back, as seen in broken lilies, Fig. 1, iy placing thelinger upon the projection d, an'd it is turned until the neck has beenbrought into the desired position relative to the thickness ot' thedoor-that is, so that it will turn freely in its seat, yet have aslittle play as practicable. .When this point is attained, release thelatch, and it will dy forward and t'all into one ot' the notches on theneck, and

thus prevent the turning otl the knob, beca-use,

coupled with the neck by means ot' the latch, the neck and knob becomeas one. At any time if the knobs become too tight or too loose they maybe rea-djusted by pressing in the latch and turning the knobsaccordingly. The notches are preferably made so as to arrest the turningin either directionthat is, with angular sides; but this is notessential, as one side may be inclined, the other angular, so that, inturning the knob on, thc latch will pass freely over the inclined sideof the notches. The angular sides prevent the return, the screw settingsufficiently to prevent the furtherturning on of the knob. But I preferto construct the notches and latch so that when in connection they willpositively prevent the turning ot' the knob in either directionindependent of the neck. By this construction the nicest adiustment maybe attained, and I avoid the difficulty which so freq uentl y occurs bythe displacement of the screw through the neck in the commonconstruction.

I claim as my invention- The detached knob and neck D and E, incombination with the spindle A, when the said knob is provided withascrew, C, and

latch b, and the neck constructed with one or more notches, a, by meansot' which and the said latch the knob and neck are coupled together,substantially as set forth.

H. J. P. WHIPPLE. Witnesses:

J ons Q. THAYEE, AARON G. BUTLrR.

TENT VQEFIoE.

